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Configuring Hardware and Communication Connections STEP 7.pdf

Configuring Hardware and Communication Connections STEP 7.pdf

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Basics of <strong>Configuring</strong> <strong>Hardware</strong> with <strong>STEP</strong> 7<br />

When Should You "Configure <strong>Hardware</strong>"?<br />

The properties of the S7 programmable controllers <strong>and</strong> modules are preset with<br />

default values such that in many cases you do not need to configure them.<br />

Configuration is necessary in the following cases:<br />

• If you want to change the default parameters of a module (for example, enable<br />

a hardware interrupt for a module)<br />

• If you want to configure communication connections<br />

• For stations with a distributed I/O (PROFIBUS DP or PROFINET IO)<br />

• For S7-400 stations with a number of CPUs (multicomputing) or expansion<br />

racks<br />

• For fault-tolerant (H) programmable control systems<br />

<strong>Configuring</strong> <strong>Hardware</strong> <strong>and</strong> <strong>Communication</strong> <strong>Connections</strong> with <strong>STEP</strong> 7<br />

1-2 A5E00706939-01

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